>> i say a heart. >> is it a whale's tail or heart. >> that's what nasa is calling it, a whale's tail. >> what an incredible story. we have learned more in the past five day s than the last 85 years in the risry books. it was in an observatory i went top flagstaff, arizona. incredible because to think the images and the way they have advanced and we learned there are ice caps on there and parts of the southern hemisphere don't see sunlight but once every 100 years. >> we take the pictures and it takes 4 1/2 hours. >> over the next 16 months we will get complete images, over thousands of images taken. this is what it looked like in 1930s. pixels. new horizon in the past 24 hours the perspective vastly different